https://devzone.nordicsemi.com/f/nordic-q-a/74017/nrf-connect-sdk-log-output-to-cdc-acm-reconfigurationDear sirs, Here we&#39;ve faced with the issue about logs output, could you please help? We need to use two CDC_ACM devices on the board: one for shell and printk() output and another for log output. So, now we&#39;ve configured shell to use CDC_ACM_1 anden-USTelligent Community 13Thu, 15 Apr 2021 11:20:38 GMThttps://devzone.nordicsemi.com/thread/305065?ContentTypeID=1Thu, 15 Apr 2021 11:20:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8bb619c0-9019-42b1-b853-0ae97fd6533cDmitry Kr<p>Also, the another issue was found:</p> <p>1. RTT and USB console outputs data within 2 sec interval. Why?</p> <p>2. RTT will not output console stream until USB initialized using usb_enable(). Why can&#39;t we use these interfaces independently?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/305062?ContentTypeID=1Thu, 15 Apr 2021 11:16:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ccc9eafa-42c5-49f1-a847-fd421e74dbfdDmitry Kr<p>Should note that after few rebuildings / reconfiguration the CDC_ACM_0 starts to output console stream too (in addtion to RTT), and shell on CDC_ACM_1 works well. There were no changes in console settings on that. What&#39;s going wrong here?&nbsp;</p><div style="clear:both;"></div>